Anyone who has ever spent a night tossing and turning in a cold house as a result of a busted heating system will never look at that particular equipment the same way again. It's as unpleasant as ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? You probably don’t spend a whole lot of time thinking about your water heater, and ...

Bob is a service technician who is well trained and nationally certified. However, he sometimes suffers from the same confusion that all technicians occasionally do - the facts that he gathers may or ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Thom Dunn Thom Dunn is a writer focusing on home heating and cooling. He once ...

Carved into the rock beneath a Swedish city, a huge man-made cave system dating back to the Cold War is being used to heat local housing. DW found out how it works ...